364 PEOCEEDINGS OF THE 



notes and papers ; also to Mr. Russell for having organised an 

 exhibition at the Red Triangle Club that had been much appre- 

 ciated. 



On the recommendation of the Committee, Mr. G. T. Harris, 

 well known for his work on the Desmidiaceae, was elected an 

 Honorary Member of the Club. The President then called on 

 Mr. E. Cuzner, to read his paper, " Some Studies in Marine 

 Zoology," Mr. Cuzner said there might be some that were not 

 familiar with the varied and beautiful forms of life that could 

 be found in the rockpools and open sea, and that he proposed, 

 with the aid of lantern-shdes, stereo-photomicrographs, and 

 prints, as well as many of the objects themselves that were shown 

 under microscopes in the meeting room, to describe a number of 

 marine zoological specimens from the lowest forms of life to the 

 vertebrates. A large number of lantern- slides were shown on the 

 screen, most of which were photomicrographs taken by dark- 

 ground illumination. The amoeba, said Mr. Cuzner, was generally 

 considered to be the simplest self-contained unit of animal structure. 

 Many beautiful microscopical marine forms are similar to it in 

 composition and structure so far as has yet been discovered, but 

 they secrete for their protection beautiful calcareous or siliceous 

 skeletons. The best known of these creatures are the Foraminifera 

 and the Polycistina. In the next group — Acanthometra — there 

 is no enclosing shell, but a spicular skeleton, and in the beautiful 

 Collozoum punctatum we have a colonial form composed of masses 

 of similar individuals of this type. The last of the protozoa to be 

 described was Noctiluca miliar is, to which the phosphorescence of 

 the sea is often due, and Mr. Cuzner then passed on to the 

 Coelenterata, describing the structure of sponges, and showing 

 the variety of spicules found in the group. The coral polyps were 

 represented by several forms, and a series of photographs of 

 sea anemones was shown. A very considerable part of the lecture 

 was taken up by the Hydroida, in which the lecturer was especially 

 interested. The structure of the freshwater hydra, which is the 

 simplest of the hydroids, was described in detail. It belongs to a 

 sub-order that has no marine representatives, but its simple struc- 

 ture forms the basis of all the families of the Hydroida, however 

 diverse may be their forms. The process of reproduction is very 

 varied in the difierent genera. Sporosacs containing spermatozoa 

 or ova may be formed on the hydroid, or there may be an alterna- 



